display battery fault - Galaxy S II Q&A, Help & Troubleshooting

Hello, I have a samsung galaxy s2 gt i9100 with a problem that I do not manage to find from where it comes. when I branch to the PC displaying the battery collapses until zero and then unplugged when it goes out and it is necessary to remove the battery and put it back to the start and functioning normally. well when it is off and that puts him in charge and then to start you must remove the battery and put it back and then it starts normally. beginning if someone has a solution or explanation I'm interested. thank you in advance.

Try a new battery. Also sounds a lot like the USB board/port is on the fritz; it almost always throws up intermittent problems like the ones you're experiencing rather than dying completely all of a sudden.
Replacing it is easy/cheap to do. There have been lots of threads about this issue on here over the past few months, search for those. You need to look at the USB board you currently have in the phone & order the exact same one. There are 4 different revisions from memory, get the wrong version & your phone may not work/properly after you change it. So it pays to get it right first time.

MistahBungle said:
Try a new battery. Also sounds a lot like the USB board/port is on the fritz; it almost always throws up intermittent problems like the ones you're experiencing rather than dying completely all of a sudden.
Replacing it is easy/cheap to do. There have been lots of threads about this issue on here over the past few months, search for those. You need to look at the USB board you currently have in the phone & order the exact same one. There are 4 different revisions from memory, get the wrong version & your phone may not work/properly after you change it. So it pays to get it right first time.
Click to expand...
Click to collapse
thank you for the answer

You're welcome Hope you get it sorted (Let us know how you get on).

I have change the usb card but it's the same thing .i have changed to rom stock but it's the same . I think now the problem is in mothercard .
Sent from my GT-P5110 using xda app-developers app

Whoa. Wait a minute.
You're trying to tell me you were able to source a new USB board/port on a Sunday & replace it all in the space of 3 hours ?

Related

[Q] Phone thinks it is charging when it's not

So my i777 running ICSrewed 2.0.1 with siyah kernel and previously hellraised CheckROM thinks its changing when it isn't. To be more correct it starts and stops charging every couple seconds when no usb is connected. So it will vibrate in my pocket every few second when it thinks i disconnected the usb cable. When turned off the phone flashes the battery charging screen followed by the battery screen with the yellow triangle and thermometer. This happens no matter what. I've reflashed my rom, tried entropy's DD instead of siyah kernel with no results. Also it seems to have several different ideas about the battery level, if i restart the phone the battery level usually changes by around 20%.
I'm not running any setCPU or UV apart from whats build into the kernel. Phone is only about 2 months old and is always kept in an industrial ballistic case.
Any ideas? Am i looking at a hardware issue or something that could be software related?
Thanks in advance
Any help is greatly appreciated
Sounds like 1 of 3 things IMO .. either the OS is freaking out or your battery is defective or your miniUSB connection is dirty/messed up/bent.
I had the issue after about a month where my GSII would go into car dock mode out of the blue for no reason. Voice search would fire up randomly. A factory reset fixed mine but there are tons of people that have reported the miniUSB needing cleaning (and/or a touch of grease) and resolved the issue.
Samsung GSII
ICScrewD 2.0.1 (init.doh 0.2.5)
​
jsd6265 said:
So my i777 running ICSrewed 2.0.1 with siyah kernel and previously hellraised CheckROM thinks its changing when it isn't. To be more correct it starts and stops charging every couple seconds when no usb is connected. So it will vibrate in my pocket every few second when it thinks i disconnected the usb cable. When turned off the phone flashes the battery charging screen followed by the battery screen with the yellow triangle and thermometer. This happens no matter what. I've reflashed my rom, tried entropy's DD instead of siyah kernel with no results. Also it seems to have several different ideas about the battery level, if i restart the phone the battery level usually changes by around 20%.
I'm not running any setCPU or UV apart from whats build into the kernel. Phone is only about 2 months old and is always kept in an industrial ballistic case.
Any ideas? Am i looking at a hardware issue or something that could be software related?
Thanks in advance
Any help is greatly appreciated
Click to expand...
Click to collapse
It's your USB port. It's done. Use warranty, replace it. There is no fix. It happened to me as well. Be sure to revert your phone back to stock, then wipe the internal SD card as well. Look through the threads in General for the revert to stock by Entropy.
Sent from my SAMSUNG-SGH-I777 using xda premium
autonomous-inc said:
It's your USB port. It's done. Use warranty, replace it. There is no fix. It happened to me as well. Be sure to revert your phone back to stock, then wipe the internal SD card as well. Look through the threads in General for the revert to stock by Entropy.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Yes, this. There are several threads in Q&A or General (including one by me) regarding USB port failures. The behaviors you describe are pretty much across-the-board for those of us who had this happen. As recommended above - warranty replacement is the way to go - they may make you go through a bunch of steps prior to approving your RMA - a common one seems to be to try another battery. As far as I know, this has not worked for anyone who tried it.
Yes - your described symptoms are consistent with what appears to be the most likely hardware failure scenario I777 owners are going to encounter if they encounter any hardware failures.
I have same problem.but just started since running ics screwed same version...never happened on any others
Sent from my SGH-I777 using XDA App
Thanks everyone, that's what i was thinking, it was just strange because apart from the phone freaking out in my pocket it hasn't had any effect, the usb works for everything else.
I don't think it's ISCrewed in particular, it started when i was on CheckROM, i flashed ISCrewed just in case it was something about the hellraised rom.
Thanks again, back to my cappy i guess
I have the identical issue. Many times a day the phone "chirps" and thinks it has been plugged in/unplugged in, though it hasn't. It also enters and exits driving mode on a similarly random basis. Unfortunately I bought this phone used (though the problem only started this week, and I've owned the phone for 2 months), so I'm fearing that I won't be eligible for RMA. Has anyone had success using the Samsung manufacturer's warranty when they aren't the original purchaser?
adam8281 said:
I have the identical issue. Many times a day the phone "chirps" and thinks it has been plugged in/unplugged in, though it hasn't. It also enters and exits driving mode on a similarly random basis. Unfortunately I bought this phone used (though the problem only started this week, and I've owned the phone for 2 months), so I'm fearing that I won't be eligible for RMA. Has anyone had success using the Samsung manufacturer's warranty when they aren't the original purchaser?
Click to expand...
Click to collapse
What ROM are you using?
Sent from my SGH-I777 using XDA App
justinblaine23 said:
What ROM are you using?
Sent from my SGH-I777 using XDA App
Click to expand...
Click to collapse
Unnamed 2.2.1
hmm weird I was having problem on ics screwed changed and now no problem recently..hoping it isn't the port!
Sent from my SGH-I777 using XDA App
I've been running Unnamed 2.2.1 since late December, and the problem only started a few days ago, which makes me think it's probably not software related, at least in my case. I've read many accounts of GS2 owners whose USB ports start flaking out and causing identical problems to what I'm experiencing, so my hunch is that's what it is. Before I look into a warranty return, I'm going to clean out the port with rubbing alcohol and a paintbrush.
I had this happen as well. It seemed to happen soon after I would flash siyah kernel. happened 3-4 times. For the past month or so have been running only entrophys dd kernel and have not had the issue come back yet.
I was running siyah too been running entropys fine since i switched..idk if kernel glitch or just coincidence
Sent from my GT-I9100 using XDA App
Been there, done that
I had the exact same problems described above a few months ago. Thankfully, a "knowledgeable" AT&T rep just gave me an 800 number to call...did their obligatory troubleshooting and sent me a replacement (took a few days). Of course, I ordered a USB jig to erase the "root" counters just in case.
I noticed the problem on UnNamed (although it ended up not being the ROM of course) and switched to CM7....seems like I either never had the problem on CM7 or it took a really long time to come back.
Regardless, while i was waiting on the replacement, I removed the battery and, as was said above, swished around a small paintbrush dipped in rubbing alcohol in the USB port....didn't have the problem again. Went ahead and switched out phones anyway...but appeared to be "fixed". Kinda sad though...I rarely even use the USB (switch out between 3 batteries)...never had that kind of problem with my previous "fruit" phone. ;-)
I swabbed out the USB port with rubbing alcohol two days ago, and the problem hasn't happened since then. That same day, and since then, I've stopped keeping the phone in the bathroom while I take a shower, on the thinking that the steam could be aggravating the problem. Don't know whether the alcohol or the no-bathroom rule has helped things, but the problem seems to be gone for now.
adam8281 said:
I swabbed out the USB port with rubbing alcohol two days ago, and the problem hasn't happened since then. That same day, and since then, I've stopped keeping the phone in the bathroom while I take a shower, on the thinking that the steam could be aggravating the problem. Don't know whether the alcohol or the no-bathroom rule has helped things, but the problem seems to be gone for now.
Click to expand...
Click to collapse
AWESOME! Hope more people see this...seems to be more common than a Google search would imply.
Sent from my SGH-I777 using XDA App
Yep , mine has just started doing this the other day... Bent the usb port pins a bit and while it is stuck in charging mode (it thinks) it is not jumping to the dock or anything... so as long as i dont turn it off im ok for now.
Question is , I am running an ICS build AKOP 4.0.3 , do you think it could be safe doing triangle away (since the usb port is pretty much gone to try a jig might not be worth it) and mobile odin to flash back to stock so that I can bring it into my local att store and see what I can do there?
adam8281 said:
I have the identical issue. Many times a day the phone "chirps" and thinks it has been plugged in/unplugged in, though it hasn't. It also enters and exits driving mode on a similarly random basis. Unfortunately I bought this phone used (though the problem only started this week, and I've owned the phone for 2 months), so I'm fearing that I won't be eligible for RMA. Has anyone had success using the Samsung manufacturer's warranty when they aren't the original purchaser?
Click to expand...
Click to collapse
You could try telling Samsung that it was a gift. They should be able to determine the original purchase date from the IMEI. I've never dealt with Samsung directly, only At&t. I did a warranty replacement on my original SII last month for the same issue and am now in the process of getting a 2nd replacement for the same issue. Just an FYI, revert to stock before you call them, they'll ask what version you're running, I was running 2.3.4 stock last night. They decided to push the 2.3.6 update to my phone and said I'd have to wait 24 hours before continuing onto getting another replacement. You'll also want to tell them you've already done a factory reset, it'll save you time. I'd recommend grabbing a beer or two for the call, makes working your way through their troubleshooting a bit easier.

(Solved) fake charging in galaxy s2

If you are facing an issue with Samsung galaxy SII with fake charging and you think that it’s a port issue and you are willing to change the USB port for your device please stop and action the below steps 1st to make sure that its not a software issue
• Take a backup from all your data in the internal memory
• Wipe your device by dialing the code *2767*3855# in your phone app
• Open the device in the download mood and flash on it a stock 2.3.5 OS
• After that you’ll find your device working like charm
• Don’t root your device in this phase, just flash it with a stock 4.0.3 and then flash it with the root from CF-root
• After that you can flash a custom ROM and I recommend Resurrection Remix
• The idea that you change from ICS to ginger bread that you will completely wipe everything in your device so it will be as if you are buying it new.
Appreciate that the above is helping people having this issue as I had it and now its solved.
The Original Post down there
Dear XDA team,
Appreciate your support on the below:
I’m an android user since 2009 I had many devices since that date ended with galaxy SII i9100 “international edition” 16GB
It was working fine from Dec 2011 till 4 days back.
4 days back the battery was 10 % and I plugged the original charger to the device and I slept for about 8 H, then I unplugged the charger how ever since that time my device is having the animation of the charging in the battery and its giving that its already plugged to the charger.. The main issue that I thought it’s a USB port issue so I tried to clean it with alcohol and with a tooth brush gently and nothing was helping... then I found that in the CWM the USB cable is working fine in mount mood so this means that nothing bad with the port so I tried to think about the ROM, I formatted the system drive and cleaned the kernel and installed the official software ICS 4.0.3 and I removed the root.. I still have the issue and its always giving me that the battery health is overvoltage I asked someone in the local warranty and he stated that there is some issue with water with the device which I know by heart that it was not effected by water.. I thought maybe because all the galaxy SII users are experiencing overheated issues and we spent most of the time in air conditioner here in Egypt so it can affect by heat and the condensation process but supposed that the device must have a failsafe protocol .. I have a good faith in Samsung but I found that the issue is still there and nothing was treated, someone told me that it can be a battery issue and you have to install a new battery and I did changed the same and I tried to put also the battery in deep freezer to lose its volts and nothing helped ..
Last trouble shooting made was to try to remove the battery and put the device in the sun to have any amount of moisture away and I let it about 3 H and also I put the charger in the device without the battery and I found it opening without battery as this was for me something strange.
Please share your ideas with me as I can’t find help from the warranty or from anyone and I don’t want to void my warranty by changing the USB port as most of people advised to..
Waiting for your kind ideas to help me with my poor situation
Sorry for making it long for you to read all the above but I really want to explain everything I did to help in solving the problem as I searched the internet and I found that many people are experiencing the same.
Your kind feedback is highly appreciated.
i'm sorry to tell you but it seems that you do have some problems with the usb flex cable (usb socket) and from what i have read here it seems that it doesn't need for the phone to be soaked in water... just condensation can cause you these problems... so you can guess what i can advise you... replacement
when i had the same problem i took it to servicing and they dismounted it and cleaned it properly, it worked for a couple of days but i ended up replacing the faulty part
gigeaky said:
i'm sorry to tell you but it seems that you do have some problems with the usb flex cable (usb socket) and from what i have read here it seems that it doesn't need for the phone to be soaked in water... just condensation can cause you these problems... so you can guess what i can advise you... replacement
when i had the same problem i took it to servicing and they dismounted it and cleaned it properly, it worked for a couple of days but i ended up replacing the faulty part
Click to expand...
Click to collapse
Thanks gigeaky for your support i wish i can have any other solution.
My experience is different. I just got the phone and it was charging normally albeitba little slow compared to my sensation but now with a custom rom it has the fake charging issue.
Sent from my GT-I9100 using XDA
If you were on a gingerbread rom before you should know that it doesn't show you that error, but you can try. And also I'm not trying to be rude but search for this problem and read the specific thread... Last time I checked there were almost 20 pages about this problem.
Sent from my SGS2-I9100 powered by a SensatioN(al) 3.4 ROM
gigeaky said:
If you were on a gingerbread rom before you should know that it doesn't show you that error, but you can try. And also I'm not trying to be rude but search for this problem and read the specific thread... Last time I checked there were almost 20 pages about this problem.
Sent from my SGS2-I9100 powered by a SensatioN(al) 3.4 ROM
Click to expand...
Click to collapse
i already searched the internet regarding the same and i got the point and i mentioned clearly that i did all that they made but its not working and i don't want to change the USB port that's why i created this thread to gain more experience from XDA family as i know by heart that everyone here is having great ideas.
thanks for your kind participation
moe.nassef said:
i already searched the internet regarding the same and i got the point and i mentioned clearly that i did all that they made but its not working and i don't want to change the USB port that's why i created this thread to gain more experience from XDA family as i know by heart that everyone here is having great ideas.
thanks for your kind participation
Click to expand...
Click to collapse
If you don't want to change the part for the USB port, then you're eliminating the one thing that will definitely fix your issue.
Hey guys, i know ot os inrelated bit i just left my phond to charge overnight and whrn i picked it up to check the time it was boilong. I have no apps running, just wifi ad the screen wasnt even on
Sent from my GT-I9100 using XDA
Remove battery, goto recovery wipe data cache.
Still issues, format system partition and flash the rom again.
Still issue change the modem
atifsh said:
Remove battery, goto recovery wipe data cache.
Still issues, format system partition and flash the rom again.
Still issue change the modem
Click to expand...
Click to collapse
I did all what you've mentioned and its not helping i guess its a battery issue as i tried something here .. i put the device in the download mood and its was connected to odin fine .. also now am having the device connecting as internet tethering activated on my laptop.. definitly i need a larger battery to use but the issue that no one is selling the same in Egypt
if any one know a place in Egypt selling <2000 MAP battery for Galaxy S2 i'll be glad to have this thing done ASAP.
today i went and through the device to the warranty office in order to be fixed there and they had a look in the device they mentioned that its a recurrent issue and it must be water and they will check the same and feed me back .. warranty here in Egypt is sucks like everything about this damn country.
wish me luck
Before doing anything dramatic, try the following method, which worked successfully for me:
Get a compressed air can and blow the USB input a few times in short bursts. Do not use anything else than compressed air, unless you want to run into more serious problems.
I face the problem calibration also not working and i got no ans that can solved the problem for me too now m also searching the result.
Sent from my GT-S5302 using xda app-developers app

[Q] How you fixed your random reboots.?

Hi all, i want to know methods how different people saved this issue on amaze, i have but i cant fix it i tried different methods, but all that help only for some time. I opened this thread for other people(i think many people experience this problem) for finding the fix.Thanks for reading and answering.
There is no way to answer such a general question like this with such limited detail. There are so many things that can cause random reboots: bad battery, problem with an app, rom, kernel, etc. How r we suppose to be able to know what is causing your reboots, you didn't even say what your phone's current setup is: unlocked/locked, custom rom/stock, cust kernel/stock, etc.
A lot of amaze owners have had problems with battery going bad and random reboots being one of the issues. So that may be one thing to try. Good luck
sent from my
NRGized amaze
powered by Faux
I didnt ask you to help me only my issue. If you read carefully i sayed how you fixed your problem. i need to know how people fixed their own problem of reboots.
gogjhan said:
I didnt ask you to help me only my issue. If you read carefully i sayed how you fixed your problem. i need to know how people fixed their own problem of reboots.
Click to expand...
Click to collapse
O, ok. Well excuse me for not reading carefully ..notice how no one else has responded to your question..? Well anyways, sorry you don't want my help, enjoy your random reboots
sent from my
NRGized amaze
powered by Faux
aj_2423 said:
O, ok. Well excuse me for not reading carefully ..notice how no one else has responded to your question..? Well anyways, sorry you don't want my help, enjoy your random reboots
sent from my
NRGized amaze
powered by Faux
Click to expand...
Click to collapse
No you didnt understand me correctly if you have solution so please say. it will be appreciated. i said so because i have posted one more such thread and asked solution nobody answered . so i tried asking people how they solved their own ones. but if you know...if you need for answer more detailed information : i am using CM10 nightlies.(but i have tried all roms here(it is not rom problem)) s-on, 4ext,unlocked bootloader
gogjhan said:
No you didnt understand me correctly if you have solution so please say. it will be appreciated. i said so because i have posted one more such thread and asked solution nobody answered . so i tried asking people how they solved their own ones. but if you know...if you need for answer more detailed information : i am using CM10 nightlies.(but i have tried all roms here(it is not rom problem)) s-on, 4ext,unlocked bootloader
Click to expand...
Click to collapse
Go back to stock.
Learn/read more about what you're doing when modding your device.
Maybe try again
Problem solved
Nobody with any knowledge is having random reboots. Its usually the people who flashed a ROM incorrectly, is using an unstable ROM build, over/under clocked their CPU too much or under volted their CPU too much. I never once had a random reboot that i didnt provoke (which means it wasn't random) unless I was using an unstable ROM.
Sent from my SGH-T999 using Tapatalk 2
Now i went back to stock, but i am experiencing the same problem but less 2-3 times a day.i have enough knowledge about flashing modding, i had 6 android phones before this one, but this problem i cant fix in no way. i am using now stock ics, the CPU isnt over or underclocked and i didnt flashed any mods. pure official rom with some 5-6 apps, i am trying to understand maybe it is from apps.
Battery caused my randoms. Anker took care of it. Or you can opt for OEM but most likely happen again.
Double0EK said:
Battery caused my randoms. Anker took care of it. Or you can opt for OEM but most likely happen again.
Click to expand...
Click to collapse
^^^would be my guess
sent from my
NRGized amaze
powered by Faux
Double0EK said:
Battery caused my randoms. Anker took care of it. Or you can opt for OEM but most likely happen again.
Click to expand...
Click to collapse
I'll try, thanks for answer yall. But after returning to stock i am only having reboots at nearly 20%, and it is like phone trying to confidure, to calibrate its battery, it is rebooting 2 times, it shows 5% and there are no more reboots. I tried to calibrate no help. Ill try to bye anker battery, not to change and i cant buy in armenia, there is no htc shop or centre, but what if i put sensation battery? Because, the choice for sensation is bigger.
Htc amaze random restart
GalaxyS3Guy said:
Go back to stock.
Learn/read more about what you're doing when modding your device.
Maybe try again
Problem solved
Nobody with any knowledge is having random reboots. Its usually the people who flashed a ROM incorrectly, is using an unstable ROM build, over/under clocked their CPU too much or under volted their CPU too much. I never once had a random reboot that i didnt provoke (which means it wasn't random) unless I was using an unstable ROM.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
Actually i didnt flash any ROM..using the stock rom GB which came with the phone..But still im facing the problem dono how to solve it...every 7 0r 8hrs it restarts.....pls help me out.!
I have the same problem!!!
hello, I have the same problem, but I see that this happend to me when I receive a call, that is no all the time but usually happen in incoming calls at night.
I have installed MIUI
xhunterx182 said:
hello, I have the same problem, but I see that this happend to me when I receive a call, that is no all the time but usually happen in incoming calls at night.
I have installed MIUI
Click to expand...
Click to collapse
OK, I THINK I MIGHT HAVE FOUND A SOLUTION!!!!!!!
I bought an Anker battery. After a while, it will start doing the random reboot things. The cool thing is, the Anker batteries come with an external charger. If I take the battery out of the phone and use the charger, it seems to "reset" the battery so it works fine for a while.
I'm startting to think there is an issue with the charging system on the phone - who knows.
thank!!!
Konowl said:
OK, I THINK I MIGHT HAVE FOUND A SOLUTION!!!!!!!
I bought an Anker battery. After a while, it will start doing the random reboot things. The cool thing is, the Anker batteries come with an external charger. If I take the battery out of the phone and use the charger, it seems to "reset" the battery so it works fine for a while.
I'm startting to think there is an issue with the charging system on the phone - who knows.
Click to expand...
Click to collapse
I'll prove it when i get one, because I have only the usb charger, thanks by the solution
One Quick Solution
Okay so this is just one quick solution for those specific people out there that have had random reboots on EVERY ROM they try. A good friend of mine had constant reboots even on modified stock ROMs like Revolution HD which I have never had rebooting issues. We noticed the battery was easily removed when taking off the backing so we inserted a paper index card on the bottom to decrease the gap and make the fit slightly tighter. We just cut an index card to about the size of an inch in length and the same width as the battery compartment and then folded it in an L shape inserted it in the bottom of the battery slot and his phone has seen nearly 0 reboots since doing this. Seems like a dumb issue but it is worth a try especially if your Amaze has taken some physical abuse.
Still having problems. No idea what to try anymore. Might have to bite the bullet and get another phone. Never again HTC.
Sent from my HTC_Amaze_4G using xda app-developers app
Wife had the same problems...
a little background of her Amaze issues:
- tmobile stock ICS ROM, not rooted, about 16 months old.
- after about a year random reboots begin and get more frequent, sometimes 6-7 times daily
- replaced with new Anker battery. problems go away for about 2 weeks
- after about a month, phone no longer charges (no orange light) using the original ac adapter and usb cable
- gave in and called HTC (from htc.com:United States/English/+1-866-449-8358/08:00 - 01:00 ET (7 days a week))
- got a RMA number and paid for shipping (~ $6 with Insurance at USPS) to Texas
- HTC returned her Amaze (same IMEI number), fixed under warranty. Not exactly sure what they replaced/fixed as they did not provide details.
If you're in a last resort type of situation, give them a call...you never know! Since being fixed, it's been rooted and NRG ICS Blue ROM and 4EXT recovery flashed, just like mine. All is great...for now... If Amaze dies again, not sure what phone to get next.

Help with Random Reboots

Hey guys, my i777 has been random rebooting for 3 months now. I've tried everything in the realms of wiping, foctory reseting, ROM flashing etc. When I flash a new ROM (I like SuperNexus and CM9/10) the random reboots are happenning once a day. As time goes by, the number of random reboots reaches a number like 10, 15 per day, which makes the phone basically a black brick. I've tried identifying usage patterns that could lead me to a system fail (maybe some app could be causing it?) but it didn't make either.
It's a hard reset (it takes me back to Samsung screen) and I've tried everything, in every way, in every forum you can imagine, I've also tried looking in the last_kmsg log file, but it never gives me material to work with.
My last attempt to make this work is right below, I've recorded the logcat (it's really big!). I'd be very pleased if anyone with more knowledge in Android system than me could try to identify what's causing this. Thank you so much! The logcat is attached in this thread.
So you've tried going back to stock ginger bread, not installing any apps, and seeing if the problem persists?
Phalanx7621 said:
So you've tried going back to stock ginger bread, not installing any apps, and seeing if the problem persists?
Click to expand...
Click to collapse
Yes I have, keep getting random reboots. Is this a case of throwing the phone away and buying another? I have it for 1,5 years, maybe should be time to move ahead... This thing already gave me so much headache that I've already paid another phone in stress and sweat
vphilot said:
Yes I have, keep getting random reboots. Is this a case of throwing the phone away and buying another? I have it for 1,5 years, maybe should be time to move ahead... This thing already gave me so much headache that I've already paid another phone in stress and sweat
Click to expand...
Click to collapse
As long as you're not adjusting voltages, sounds like maybe the power button could be sticking
Sent from my SGH-I777 using xda premium
Well, guess this could be my last try. I'll check it out and post my results asap... thank you.
There are tutorials on replacing the power button, from what I've read its not too difficult but I suppose its always easier said than done eh lol.
Sent from my GT-I9100 using Tapatalk 2
I had a similar issue, mine would reboot sometimes once a week, sometimes 5-10 times a day. Random sleep of death, freeze and complete battery drain etc. I finally sent it in on my square trade warranty and they replaced the main board - some sort of short in there that was causing it i guess. I suppose it would be possible to swap out the main board, or buy a used phone with a broken screen or something to strip for parts.
There is a great video by "le55ons" on youtube tearing down a I9100 that could help you get an idea of what's involved.

[Q] Complicated Version of the Reboot-after-Shutdown Problem

Hi there,
I searched the forums, I tried suggested solutions, I've been at a repair shop, nothing helped so far.
I have a SGS2 GT-I9100 Android 4.0.4, Baseband I9100XXLPX, Kernel 3.0.32-CM-ge9cef6c (Aug 28, 2012), CyanogenMod 9.1.0-galaxys2. This has been working flawlessly for months now -- until I plugged it into an DC-USB adapter in my car. When I plugged it into the car adapter the phone rebooted.
Since then the phonce shows the following symtoms:
a) If I shutdown the phone, it restarts automatically.
b) If I remove the battery and re-insert it, the phone starts automatically.
c) USB connection to PC does not work anymore.
d) Charging the battary is possibly. However, charging is not indicated in the status bar as it used to be.
e) The battery drains much faster than it used to. (Settings menu reports the CPU being at 200 MHz, when idle)
What I did so far:
1) Cleaning the Micro-USB socket. --> Didn't help
2) Going to a repair shop to replace the socket. The guy disassembled the phone, and connected the ribbon cable to another USB socket. Didn't help. He also tired another battery. Didn't help. He suggested to go back to the original software as this may cause the problem. If that didn't help, he said, it is the mainboard.
3) I reset the phone (i.e. wiped the Dalvik cache, etc. and reset battery stats in recovery) and ended up with a "naked" SGS2 with the above specs. Yet, this didn't solve my problems.
What I hope to find here:
i) Someone sharing their solid experience/knowledge as to what causes such behaviour.
ii) Instructions how to reset the phone to its stock software (remember c) above).
iii) Other suggestions how to fix these problems.
What I have at hand:
Windows 7; Ubuntu (preferrred, also used it to flash the phone back then); a PhD in computer science.
What I don't have:
An SD-Card, but willing to buy if needed; knowlegde of all acronyms and "community speak", but willing to learn.
tl;dr: Thanks for reading so far.
Best,
Daniel
Hi, I was wondering if you got this fixed yet?
Hi there,
no I didn't find the time to play/mess around with the phone. If you do -- I expect you have a similar problem -- please let me know.
Best
Ponnyhof said:
Hi there,
no I didn't find the time to play/mess around with the phone. If you do -- I expect you have a similar problem -- please let me know.
Best
Click to expand...
Click to collapse
Can you connect it to PC in download mode?Or it doesn't work at all?
Also,you can try Mobile Odin to reset your phone.It can take a time,I've never tried it before,but I have seen that it works.Here's a video that can help you http://www.youtube.com/watch?v=TLxGzWYGDNw (it's the same for S2,don't worry that it'a an S3).And for the firmware,go to http://www.sammobile.com/firmwares/1/ and create yourself an account.I recommend you to download the UK/IIreland -XEU firmware,because I know it's an unlocked firmware.Download it right on your mobile,then flash it via Mobile Odin.Let me know that it helped.
GamingDj
I had the exact same problem after using a car charger. I took my phone in for warranty repairs and they changed the USB flex cable and the battery. No more issues since then.
Ponnyhof said:
Hi there,
no I didn't find the time to play/mess around with the phone. If you do -- I expect you have a similar problem -- please let me know.
Best
Click to expand...
Click to collapse
Yup, my phone says charging for some time even after I pull the cable out and I can not shut it down because it restarts itself.
Sent from my GT-I9100 using Tapatalk 2
Mine seems to have fixed itself
I will report back in the next 3 days to say how it is
Sent from my GT-I9100 using Tapatalk 2
UPDATE: The phone messed up again then restored back to awesomeness within 3 days. Weird
Sent from my GT-I9100 using Tapatalk 2
UPDATE: The phone has been running perfectly since my last post, seems like this is a temporary problem(at least for me it is)
Sent from my GT-I9100 using Tapatalk 2

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